| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <assert.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <intelblocks/cpulib.h> |
| #include <soc/pci_devs.h> |
| #include <soc/soc_util.h> |
| #include <soc/util.h> |
| #include <pc80/mc146818rtc.h> |
| |
| const struct SystemMemoryMapHob *get_system_memory_map(void) |
| { |
| size_t hob_size; |
| const uint8_t mem_hob_guid[16] = FSP_SYSTEM_MEMORYMAP_HOB_GUID; |
| const struct SystemMemoryMapHob **memmap_addr; |
| |
| memmap_addr = (const struct SystemMemoryMapHob **) |
| fsp_find_extension_hob_by_guid(mem_hob_guid, &hob_size); |
| /* hob_size is the size of the 8-byte address not the hob data */ |
| assert(memmap_addr && hob_size != 0); |
| /* assert the pointer to the hob is not NULL */ |
| assert(*memmap_addr); |
| |
| return *memmap_addr; |
| } |
| |
| bool is_pcie_iio_stack_res(const STACK_RES *res) |
| { |
| return res->Personality == TYPE_UBOX_IIO; |
| } |
| |
| bool is_ubox_stack_res(const STACK_RES *res) |
| { |
| return res->Personality == TYPE_UBOX; |
| } |
| |
| uint8_t get_stack_busno(const uint8_t stack) |
| { |
| if (stack >= MAX_IIO_STACK) { |
| printk(BIOS_ERR, "%s: Stack %u does not exist!\n", __func__, stack); |
| return 0; |
| } |
| const pci_devfn_t dev = PCI_DEV(UBOX_DECS_BUS, UBOX_DECS_DEV, UBOX_DECS_FUNC); |
| const uint16_t offset = stack / 4 ? UBOX_DECS_CPUBUSNO1_CSR : UBOX_DECS_CPUBUSNO_CSR; |
| return pci_io_read_config32(dev, offset) >> (8 * (stack % 4)) & 0xff; |
| } |
| |
| uint32_t get_socket_stack_busno(uint32_t socket, uint32_t stack) |
| { |
| const IIO_UDS *hob = get_iio_uds(); |
| |
| assert(socket < CONFIG_MAX_SOCKET && stack < MAX_LOGIC_IIO_STACK); |
| |
| return hob->PlatformData.IIO_resource[socket].StackRes[stack].BusBase; |
| } |
| |
| uint32_t get_socket_ubox_busno(uint32_t socket) |
| { |
| if (socket == 0) |
| return get_stack_busno(PCU_IIO_STACK); |
| |
| return get_socket_stack_busno(socket, PCU_IIO_STACK); |
| } |
| |
| /* |
| * EX: CPX-SP |
| * Ports Stack Stack(HOB) IioConfigIou |
| * ========================================== |
| * 0 CSTACK stack 0 IOU0 |
| * 1A..1D PSTACKZ stack 1 IOU1 |
| * 2A..2D PSTACK1 stack 2 IOU2 |
| * 3A..3D PSTACK2 stack 4 IOU3 |
| */ |
| int soc_get_stack_for_port(int port) |
| { |
| if (port == PORT_0) |
| return CSTACK; |
| else if (port >= PORT_1A && port <= PORT_1D) |
| return PSTACK0; |
| else if (port >= PORT_2A && port <= PORT_2D) |
| return PSTACK1; |
| else if (port >= PORT_3A && port <= PORT_3D) |
| return PSTACK2; |
| else |
| return -1; |
| } |
| |
| uint8_t soc_get_iio_ioapicid(int socket, int stack) |
| { |
| uint8_t ioapic_id = socket ? 0xf : 0x9; |
| switch (stack) { |
| case CSTACK: |
| break; |
| case PSTACK0: |
| ioapic_id += 1; |
| break; |
| case PSTACK1: |
| ioapic_id += 2; |
| break; |
| case PSTACK2: |
| ioapic_id += 3; |
| break; |
| default: |
| return 0xff; |
| } |
| return ioapic_id; |
| } |
| |
| void soc_set_mrc_cold_boot_flag(bool cold_boot_required) |
| { |
| uint8_t mrc_status = cmos_read(CMOS_OFFSET_MRC_STATUS); |
| uint8_t new_mrc_status = (mrc_status & 0xfe) | cold_boot_required; |
| printk(BIOS_SPEW, "MRC status: 0x%02x want 0x%02x\n", mrc_status, new_mrc_status); |
| if (new_mrc_status != mrc_status) { |
| cmos_write(new_mrc_status, CMOS_OFFSET_MRC_STATUS); |
| } |
| } |
| |
| void get_iiostack_info(struct iiostack_resource *info) |
| { |
| const IIO_UDS *hob = get_iio_uds(); |
| |
| // copy IIO Stack info from FSP HOB |
| info->no_of_stacks = 0; |
| for (int socket = 0, iio = 0; iio < hob->PlatformData.numofIIO; ++socket) { |
| if (!soc_cpu_is_enabled(socket)) |
| continue; |
| iio++; |
| for (int x = 0; x < MAX_IIO_STACK; ++x) { |
| const STACK_RES *ri; |
| ri = &hob->PlatformData.IIO_resource[socket].StackRes[x]; |
| if (!is_pcie_iio_stack_res(ri)) |
| continue; |
| assert(info->no_of_stacks < (CONFIG_MAX_SOCKET * MAX_IIO_STACK)); |
| memcpy(&info->res[info->no_of_stacks++], ri, sizeof(STACK_RES)); |
| } |
| } |
| } |